Methamphetamine
/ˌmɛθ æmˈfɛt əˌmin/
noun
A highly addictive phenethylamine stimulant drug, similar to cocaine. Its systematic (IUPAC) name is (S)-N-methyl-1-phenylpropan-2-amine.
Synonyms: crystal, crystal meth, glass, ice, meth, methamphetamines, methylamphetamine, speed